EP 2984814 B1 20211124 - GENERATION AND RECOGNITION OF IMAGE INFORMATION DATA THAT CAN BE PRINTED IN A FORGERY-PROOF MANNER
Title (en)
GENERATION AND RECOGNITION OF IMAGE INFORMATION DATA THAT CAN BE PRINTED IN A FORGERY-PROOF MANNER
Title (de)
ERZEUGUNG UND ERKENNUNG VON FÄLSCHUNGSSICHER DRUCKBAREN BILDINFORMATIONSDATEN
Title (fr)
PRODUCTION ET RECONNAISSANCE DE DONNÉES D'INFORMATIONS D'IMAGES IMPRIMABLES INFALSIFIABLES
Publication
Application
Priority
- DE 102013103613 A 20130410
- EP 2014056820 W 20140404
Abstract (en)
[origin: WO2014166837A1] The invention relates to a method for generating and authenticating image information data from information data, which image information data can be printed in a forgery-proof manner, comprising the following steps: encoding the information data into a form of binary information pixels, wherein the binary information pixels are arranged in a grid-like manner in accordance with a first grid in respective first grid regions (R1) within an image region (R0); dividing the respective first grid regions (R1) into respective second grid regions (R2) by means of a second grid; determining a respective information field (Ixy) of the respective second grid regions (R2) of the respective first grid region (R1) in accordance with a first association rule and determining the other second grid regions (R2) as faulty fields (Sxy); associating with the respective information field (Ixy), in dependence on the value of the information pixel, a first information color value (IF1) for a value 1 and a second information color value (IF0) for a value 0; determining and associating with the respective fault fields (Sxy) a respective fault color value in accordance with a fault color value association rule; and storing the second grid regions with the respective information color values (IF1, IF0) and fault color values as printable image information data.
IPC 8 full level
H04N 1/32 (2006.01)
CPC (source: EP US)
G06T 1/0028 (2013.01 - US); H04N 1/32203 (2013.01 - EP US); H04N 1/32309 (2013.01 - EP US); H04N 1/32325 (2013.01 - EP US); G06T 2201/005 (2013.01 - US); H04N 2201/3236 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DE 102013103613 B3 20140918; EP 2984814 A1 20160217; EP 2984814 B1 20211124; ES 2907214 T3 20220422; US 2016072980 A1 20160310; US 9681020 B2 20170613; WO 2014166837 A1 20141016; WO 2014166837 A4 20150122
DOCDB simple family (application)
DE 102013103613 A 20130410; EP 14721220 A 20140404; EP 2014056820 W 20140404; ES 14721220 T 20140404; US 201414783819 A 20140404